PSA: wl-clipboard is NOT a clipboard manager.
It does two basic things, copying and pasting, which are not as simple as they sound, and it does them well. It may gain the "watch clipboard in background" feature (wl-paste --watch) some time, but it'd be still only that, a basic low-level operation.
If you need a high-level clipboard manager, with history, search, GUI and everything, you're welcome to build one on top of wl-clipboard (or use Wayland directly). But don't expect wl-clipboard to provide that.